in Nashville, Tennessee

CustomVue Bladeless LASIK: Vision is as individual as a fingerprint, and the Wang Vision Institute has the technology to measure and treat your visual errors with computer-driven precision. The flap is made using the Intralase femtosecond laser, and then the eye is resurfaced according to the computer's recommendations, rather than manual refraction. Rather than using "One or two?" to guide your surgery, we can use computer precision to give you your best personal vision. The goal is not only to eliminate the need for glasses, but to improve the overall quality of your vision. We were proud to be the first to perform the VISX Custom Vue Wavefront LASIK treatment in Tennessee , and are offering this LASIK procedure to our patients.

• Click here to view frequently asked questions about Customvue / wavefront LASIK
• Click here to read Dr. Wang's textbook on LASIK: LASIK VISION Correction

Custom LASIK using Wavefront Technology

Custom LASIK is based on technology used by astronomers to sharpen the image of distant objects that may have been distorted, for instance, by the earth's atmosphere. Aside from nearsightedness or astigmatism, vision can also be affected by "higher order aberrations". These aberrations lessen the clarity of what you see in dim light or at night, such as when driving.

Using a "wavefront analyzer" or "aberrometer", the unique aberration pattern of your eye is mapped. The wavefront map is then used to program a laser treatment customized exclusively for your eye. To do this, active eye tracking is used. The excimer laser's small spot scanning feature allows for precise shaping to correct for aberrations, and the eye tracker ensures each laster pulse hits the intended position.

Custom Wavefront LASIK is a technological advancement over conventional LASIK which may be advantageous to some people. From the surgical and patient viewpoint, however, the LASIK procedures are identical. Thus, if we find you to be a good candidate, you can be confident in our experience. While Custom LASIK may be very appropriate for some, it may not be necessary, or could even be the wrong approach, for others. Considerations such as the magnitude of your eye's higherorder aberrations, pupil size and corneal thickness suggest more conventional treatments may actually be more beneficial. Certainly, conventional LASIK will continue to work well for a large subset of LASIK patients, and we strive to give our patients the best visual outcome.

The following is a summary of clinical results and safety taken from VISX data submitted for U.S. Food and Drug Administration (FDA) approval:

• 96% of eyes had UCVA (uncorrected visual acuity) of 20/20 or better, 71% were 20/16 or better, and 22% were 20/12.5
• 94% of eyes were within ±0.50 D of the intended correction.
• 87% were very satisfied with their night vision after surgery, compared to 69% before surgery. 88% never or rarely had halos after surgery, compared to 76% before surgery.